Answer:
Check the explanation
Step-by-step explanation:
Hypotheses are:
Following is the output of t test:
Hypothesis Test: Independent Groups (t-test, pooled variance)
X1 X2
12 15.5 mean
3.6591 3.6839 std. dev.
10 15 n
23 df
-3.5000 difference (X1 - X2)
13.4999 pooled variance
3.6742 pooled std. dev.
1.5000 standard error of difference
0 hypothesized difference
-2.33 t
.0287 p-value (two-tailed)
The p-value is:
p-value = 0.0287
Since p-value is less than 0.05 so we reject the null hypothesis. That is we can conclude that the exercise program have a significant effect.
(b)
The cohen's d is
Answer:
15 inches
Step-by-step explanation:
We can solve this problem using the Pythagorean theorem. The formula is:
where 'c' is the <u>hypotenuse</u> (the longest side) and 'a' and 'b' are the <u>legs</u> (the other sides).
First, <u>draw a diagram</u> for the problem. (See the photo attached below)
We know the other leg is 8 and the hypotenuse is 17. 'a' is the missing side.
a = ?
b = 8
c = 17
<u>Substitute the values into the equation</u>.
<u>Rearrange to isolate 'a'</u>
Square root both sides
Square each number
Subtract under the root
Find the square root
Final answer
Therefore, the TV is 15 inches tall.
C. 190
Round each number
55→60.
60→60
65→70
Then add all of your rounded numbers.
60+60+70=190
Let start with making equation to find how much your friend’s lunch cost.
19= 3+x Let x= the cost of your friend’s lunch
19-3=3+x-3
16=x
Answer: Your friend’s lunch is $16.
Answer:
A
Step-by-step explanation: Because of the fact that vertical angles revolve around angles for top to bottom, its A. Correct me if im wrong.